Tags

Please log in or register to answer. And you receive a free copy of GMAT Math Formula Sheet with your sign up mail.

3 Answers

JSiede

1 point Registered user

0

if (x,y) lies inside the reactangle. pretty standard questionyou didn't need to tell it was a rectangle and you needed to tell that x,y lies inside the rectangle or the probability would have been 1/8probability = 1/3

M87W

21 points Registered user

0

The total area of the rectangle is 4x6=24 sq units. Now imagine a line is drawn from (0,4) to (4,0), Every ordered pair lying below this line will satisfy the inequality x+y*4. This line forms a triangle when combined with the sides of our original rectangle. The triangle has area 1/2(4)^2 = 8. Suppose we choose any random pair out of it,the probability will be 8/24 ,ie 1/3